Home / 31,409,672.80-47,079,517.20-12,234,056.80

Finding the Fourth Proportional to 31,409,672.80, 47,079,517.20 and 12,234,056.80

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Solution

The fourth proportional to 31,409,672.80, 47,079,517.20 and 12,234,056.80 is: 18,337,455.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,409,672.80 : 47,079,517.20 = 12,234,056.80 : x
  2. Step 2: Convert to fraction form
    31,409,672.80/47,079,517.20 = 12,234,056.80/x
  3. Step 3: Cross multiply
    31,409,672.80x = 47,079,517.20 × 12,234,056.80
  4. Step 4: Simplify right side
    31,409,672.80x = 575,973,487,541,377
  5. Step 5: Solve for x
    x = 575,973,487,541,377/31,409,672.80
  6. Step 6: Final answer
    x = 18,337,455.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.